I think we have to weigh the risks vs. the potential rewards, and accept "premature death" as a possible cost. The lack of ability to process out ammonia seems

I think we have to weigh the risks vs. the potential rewards, and accept "premature death" as a possible cost. The lack of ability to process out ammonia seems pretty debilitating, so that seems like it was a good candidate. Jesse Gelsinger is a hero, and should be remembered as such. That all said, we should glean as much science as possible from the postmortem to understand and prevent whatever misunderstandings resulted in the death, going forward.